TY  - JOUR
AU  - Protić 

 Petar
AU  - Bogdanović Stojan
TI  - Some congruences on a 

 Strongly 

 p-inverse 

 r-semigroup
JO  - Novi Sad Journal of Mathematics
PY  - 1985
SP  - 79
EP  - 89
VL  - 15
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NSJOM_1985_15_2a_6/
ID  - NSJOM_1985_15_2a_6
ER  -